2017 KTM 690 Duke

Description

Two decades ago, the original Duke was nothing short of revolutionary. KTM’s first single-cylinder street bike grew into a cult classic, adding extreme fun to a raw and radical concept. In 2017, the fully revised 690 DUKE stays faithful to its ancestor’s ways, but adds future-proof refinements: impressive smoothness, sophisticated electronics, improved ergonomics and a good old power boost over last year’s model. This firmly cements the world’s strongest single-cylinder production motorcycle at the cutting edge of engineering. Speaking of which: carving corners has never been more fun, thanks to its revised fork offset. Long live the Duke!

Specifications

Engine

Design

1-cylinder, 4-stroke engine

Displacement

690 cm³

Stroke

84.5 mm

Bore

102 mm

Power in KW

54 kW

Starter

Electric starter

Transmission

6-speed

Lubrication

Forced oil lubrication with 2 oil pumps

Primary drive

36:79

Secondary gear ratio

16:40

Cooling

Liquid cooled

Clutch

APTC(TM) slipper clutch, hydraulically actuated

EMS

Keihin EMS with RBW, twin ignition

Chassis

Frame design

Chromium-Molybdenum steel trellis frame, powder coated

Front suspension

WP upside-down Ø 43 mm

Rear suspension

WP shock absorber with Pro-Lever linkage

Suspension travel (front)

135 mm

Suspension travel (rear)

135 mm

Rear brake

Brembo single-piston floating calliper, brake disc

Front brake

Brembo four-piston radial fixed calliper, brake disc

Rear brake

Brembo single-piston floating calliper, brake disc

Rear brake disc diameter

240 mm

Front brake disc diameter

320 mm

ABS

Bosch 9M+ two-channel ABS (disengageable, optional Supermoto mode)

Chain

X-Ring 5/8 x 1/4"

Steering head angle

63.5 °

Wheelbase

1466 ± 15 mm

Ground clearance

192 mm

Tank capacity (approx.)

14 l

Seat height

835 mm

dry weight

148.5 kg

Features

Engine

The brilliant LC4 showcases twenty-four carats of fun. From the trademark 690 cm³ thumper, the engineers have now extracted a whopping 73 hp (54 kW) and 74 Nm of torque, making light work of the equally lightweight 690 Duke. How it happened? They completely reworked the cylinder head, inserted a new, ultra light and extremely strong piston and connection rod, rerouted the air intake through a resonator chamber and provided the crankshaft with sleeve bearings. As a result, the powerband is a thousand rpm wider, which means an even more uniform power delivery, especially in the mid to high rev range. Twin ignition featuring plug-selective mapping, rock solid but featherweight internals and optimized intake and exhaust systems cultivate this massive mono to be as strong as it is smooth, assisted by an advanced ride-by-wire system, which guarantees great refinement as well as low fuel consumption and emission figures. You’re green, while they’re green with envy. And you haven’t even begun mentioning upmarket goodies like a standard slipper clutch.

Cylinder Head

Inside the cylinder head, the exhaust valves are actuated by roller rockers while the camshaft powers the intake valves. Therefore, the valve timings can be controlled with far greater accuracy. The result is more peak power over a broader rev range. Win-win!

Second Balancer Shaft

In a free-revving firecracker like this, you want to smooth things out a bit. That’s why the LC4 serves a bonus balancer shaft, nipping annoying vibrations in the bud.

Engine Management

The electronic engine management system lives to make the LC4 shine. Twin ignition with individual mappings for each spark plug ensures that your precious fuel is always burned to perfection, irrespective of load and engine speed. And then there is genuine ride-by-wire, in other words: Electronically controlled throttle valve actuation without any mechanical linkage. You’d be forgiven for thinking it runs on cream. Whipped cream, that is.

All inventory listed is subject to availability and prior sale. Manufacturer's Suggested Retail Price (MSRP) if shown for a vehicle excludes set-up, freight, taxes, title, licensing or other dealer charges, and is subject to change. Individual prices may vary. Please request a quote for specific pricing.